气体灭火系统中容器阀又称为瓶头阀，按其结构形式可分为膜片式、自封式、（）三类。A.气

设a＞0且a≠1，则“函数f（x）=a^x在R上是减函数”，是“函数g（x）=（2-a）x³在R上是增函数”的（　　）

A．充分不必要条件

B．必要不充分条件

C．充分必要条件

D．既不充分也不必要条件

感染转为慢性结局的主要原因是（）

A.机体抵抗力与细菌毒力处于相持状态

B.细菌毒力增大

C.人体抵抗力下降

D.治疗不当

E.致病菌发病时间较长

下列划线字注音完全正确的一组是（     ）（2分）

A．阻塞（sè）殷切（yīn）赤裸（luǒ）荒谬（mù）

B．执著（zhuó）憧憬（chōng）瞥见（miē）烛芯（xìn）

C．规模（mó）削弱（xuē）泅水（qiú）飒爽（sà）

D．提防（tī）仄歪（zè）飘撒（sǎ）颤动（chàn）

The aims of the Illustrators’(插图画家的)Exhibition, staged as part of the Bologna Children’s Book Fair, organized by BolognaFiere and held from 23to 26 December 2011,are to bring illustrators and publishers together and to promote illustrators and their works among publishers.

QUALIFICATIONS

·Individual illustrators or groups of illustrators of any nationality, if they were born before 31^st December 1992, whose artwork is intended foe use in children’s books, are qualified to enter the Exhibition, either directly or through publishing houses or schools.

·Please state in the application form whether you are entering work for the Fiction or Nonfiction Category. Illustrators may only enter one category.

·Artwork previously presented to the Exhibition may not be re-entered.

·The confirmation(确认) form must be filled in and a photograph attached, then presented together with illustrations no later than 15 October 2011.

SHIPMENT

Entries may be delivered by post, express delivery service or by hand. From abroad, please use the following forms: Form “A” for registered mail or post by air; Form “B” if using an international forwarding agent or airline.

To avoid delays, material should not be sent by normal post. Material should be sent “carriage (运费) paid”, including any customs and delivery costs.

BolognaFiere may not be held responsible for the non-arrival or late arrival of artwork. all published works must be accompanied by a declaration bearing the ISBN number, publisher’s name and address.

REQUIREMENTS

The illustrations(i.e. the size of the sheet)must not exceed(超过) the following dimensions:

Fiction:

32×42 cm( or 42 × 32 cm)

Non-fiction:

50 ×70 cm ( 70 × 50cm)

Illustrations in larger formats will not be considered, nor will they be returned by BolognaFiere. The illustrations must be on paper or flexible board, maximum thickness 2mm( for scanner separation purposes).

SELECTION PROCESS

All artwork received by the stated deadline and meeting the specified requirements will be examined and selected by an international group ( whose decision is final ), including five members ( from publishing house and art schools ) appointed each year by BolognaFiere.

EXHIBITIONS ABROAD

After the Bologna event, the Illustrators Exhibition will travel to Japan under the supervision of JBBY. The Illustrators Exhibition may afterwards be transferred to other venues in other countries. The exhibitions of illustrations held abroad follow the same rules and regulations as the Illustrators Exhibition, and the provisions (条款) of the regulations are extended to the organizers of the exhibitions held abroad.

RETURN OF ARTWORK

All the works will be returned to their owners by BolognaFiere or directly by the organizers of the exhibitions and held abroad by the end of July 2012.

小题1:Which of the following of the Illustrators’ Exhibition is true?

A．It will last five days in all in July every other year.

B．is intended for college students who are good at painting.

C．is held by the Bologna Children’s Book Fair in BolognaFiere.

D． can strengthen the relationship between illustrators and publishers.小题2:The illustrators of the Illustrators Exhibition __________.

A．should be at least 16 and no more than 25

B．may re-enter their artwork after it is returned

C．should state the category of their artwork clearly

D．may choose to attach a photo to the application form小题3:Which of the following is unacceptable for delivering entries?

A．Normal post

B．Airline post

C．Registered mail

D．Express delivery小题4:What is BolognaFiere responsible for?

A．Paying for the delivery costs

B．Late arrival of artwork

C．Confirmation of ISBN number

D．Returning the illustrators’works.小题5:The illustrators’works will not be considered if they ________.

A．are received after the day of 15 October 2011

B．are smaller than the required size

C．have already been published abroad before.

D．don’t meet the demands of the internationals experts.

骨与关节结核的保守疗法包括（）、（）、（）。